The embodiment of the invention provides a high-voltage detection circuit, a current sampling unit, a detector, a battery device, a carrying tool and a power supply device. The invention is applied tothe technical field of batteries. The high-voltage detection circuit comprises a pre-charging circuit used for outputting battery electric energy to the outside through an outer side contact; and a processor which is used for collecting the real-time voltage of the outer side contact. Based on the high-voltage detection circuit, a parasitic capacitance value can be obtained by the following method: switching on the pre-charging circuit; collecting at least three real-time voltages of the outer side contact through the processor; and obtaining a parasitic capacitance value through the processor according to the at least three real-time voltages. Therefore, according to the technical scheme provided by the embodiment of the invention, whether the main charging circuit can be conducted or not can be judged according to the parasitic capacitance value, the conduction of the main charging branch circuit when the parasitic capacitance is excessively large is fundamentally avoided, the switch damage in the main charging circuit is avoided, and the safety of the battery is improved.
本发明实施例提供了一种高压检测电路、电流采样单元、检测器、电池装置、运载工具与供电装置,应用于电池技术领域。其中,高压检测电路包括:预充电路,用于通过外侧触点对外输出电池电能;处理器,用于采集所述外侧触点的实时电压。基于所述高压检测电路可以通过以下方法获得寄生电容值:导通所述预充电路;通过所述处理器采集所述外侧触点的至少三个实时电压;根据所述至少三个实时电压,通过所述处理器获得寄生电容值。因此本发明实施例提供的技术方案能够通过寄生电容值的大小判断是否可以导通主充电路,从根本上杜绝在寄生电容过大时导通主充支路,避免了主充回路中的开关损坏,提高了电池的安全性。
High-voltage detection circuit, current sampling unit, detector, battery device, carrying tool and power supply device
高压检测电路、电流采样单元、检测器、电池装置、运载工具与供电装置
2020-11-03
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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